Noise making apparatus

ABSTRACT

Noise making apparatus for protecting crops from wildlife comprises a combustion chamber. A gas feeding device supplies explosive gases to the combustion chamber. A sparking device in the combustion chamber explodes the gases. A spark control device ignites the sparking device when the pressure of gas in the combustion chamber reaches a predetermined level.

[451 July 29, 1975 United States Patent [1 1 Finch 2,920,600 I/l 960Hori et 116/22 A 3,056,376 10/1962 Bender..............................116/22 A 4] NOISE MAKING APPARATUS [75] Inventor: Raymond C. Finch,Clyde, N.Y.

The Raymond Lee Organization, Inc., New York, N.Y. a part interest [73]Assignee:

Primary Examiner-Edward G. Favors Attorney, Agent, or Firm-Daniel JayTick Apr. 25, 1974 Appl. No.: 464,175

ABSTRACT [22] Filed: 1

chamber. A sparking device in the combustion chamber explodes the gases.A spark control device ignites the sparking device when the pressure ofgas in the combustion chamber reaches a predetermined level.

[56] References Cited UNITED STATES PATENTS 4 Claims, 1 Drawing Figure558,176 4/1896 431/2 CHAMBER l PRESSURE SPARK GAP l8 RESPONSIVE SWITCH2| J COMBUSTION CHECK vAu/Es SECOND GAS "rues l3 PLATE 6 ELECTROIXSIS 3CHAMBER 4 m DN NI 0M mm ST STARTING SPARK COIL l9-" CAPACITOR 2O CURRENTI I I I I- PRESSURE SPARK GAP l8 7 RESPONSIVE 4 SWITCH 2| I COMBUSTIONCHAMBER I i fl j in 2\ CHECK VALVES N/EFIRST I GAS TUBEI2 I SPARK I I ICOIL I9 WATER /SECOND 2O PlPE 4* TUBE A \"IL 9 ll Pm /'8 5 E E5 I A- MIz TI- -r CURRENT W ASECOND INTERRUPTER 22 i TERMINAL 2 PLATE 6 5 FIRST IL TERMINAL; F 1 ELECTROLYSIS PLATE 5 V CHAMBER 4 24 wATER 3 I I STARTINGSWITCH 23 I l I (-I H) I] I II I I NOISE MAKING APPARATUS DESCRIPTION OFTHE INVENTION The present invention relates to noise making apparatus.More particularly, the invention relates to noise making apparatus forprotecting crops from wildlife.

Objects of the invention are to provide noise making apparatus forautomatically and continuously producing loud noises intermittently inorder to protect crops from wildlife by startling foraging animals andthereby frightening them away.

In order that the invention may be readily carried into effect, it willnow be described with reference to the accompanying drawing wherein thesingle FIGURE is a circuit and block diagram of an embodiment of thenoise making apparatus of the invention.

The noise making apparatus of the invention comprises a combustionchamber 1.

A gas feeding device supplies explosive gases to the combustionchamber 1. The gas feeding device comprises an electrolyzing system 2for decomposing water 3 into hydrogen and oxygen. The electrolyzingsystem includes, in known fashion, an electrolysis chamber 4, a firstterminal plate 5 and a second terminal plate 6 in the water 3 in thechamber. The combustion chamber 1 may have a cover 7 hingedly affixedthereto and indicated by broken lines in the FIGURE. The cover 7 isforced open by combustion in the chamber 1. The water is supplied to theelectrolysis chamber 4 via a water supply system.

The water supply system comprises a container 8 having an open top 9 andan open bottom 10.

A source of electrical energy such as, for example, a battery 11, iselectrically connected to the first and second terminal plates 5 and 6for energizing the electrolyzing system. A first gas tube 12 and asecond gas tube 13 supply hydrogen and oxygen from the electrolyzingsystem to the combustion chamber. A water pipe 14 returns water from thecombustion chamber 1 to the electrolyzing system 2 via the water supplysystem. More particularly, the water pipe 14 opens into the container 8through the top 9 thereof.

Check valves 15, 16 and 17 are provided at the upper openings of thefirst gas tube 12, the water pipe 14 and the second gas tube 13,respectively. The valve 16 is a floating ball check valve.

A sparking device is provided in the combustion chamber 1 for explodingthe gases in said chamber. The sparking device comprises a spark gap 18and a spark coil 19 electrically connected to the source of electricalenergy 11. A capacitor 20 is connected across the spark coil 19 in theusual fashion.

A spark control device ignites the sparking device, and, morespecifically, the spark gap 18, when the pressure of gas in thecombustion chamber 1 reaches a predetermined level. The spark controldevice comprises a pressure-responsive switch 21 electrically connectedbetween the source of electrical energy 11 and the spark coil 19. Thepressure-responsive switch 21 responds to a predetermined low pressurein the combustion chamber 1. The switch 21 is spring-biased and respondsto any pressure which it is adjusted to. The switch 21 is adjusted torespond to a pressure in the range of l to 8 ounces per square inch.

A current interrupter 22 is connected in the electrical connectionbetween the source of electrical energy 11 and the spark coil 19.

A starting switch 23 is connected in series with a variable resistor 24in the electrical connection between the battery 11 and the first andsecond terminal plates 5 and 6.

The check valves 15 and 17 are open when gas flows into the combustionchamber 1 and are closed when combustion occurs in said chamber. Thecheck valve 16 is closed during combustion in the chamber 1 and openafter combustion to return water from said chamber to the container 8.

While the invention has been described by means of a specific exampleand in a specific embodiment, 1 do not wish to be limited thereto, forobvious modifications will occur to those skilled in the art withoutdeparting from the spirit and scope of the invention.

1 claim:

1. Noise making apparatus for protecting crops from wildlife, comprisinga combustion chamber;

gas feeding means for supplying explosive gases to the combustionchamber;

sparking means in the combustion chamber for exploding the gases; and

spark control means for igniting the sparking means when the pressure ofgas in the combustion chamber reaches a predetermined level.

2. Noise making apparatus as claimed in claim 1, wherein the gas feedingmeans comprises electrolyzing means for decomposing water into hydrogenand oxygen, and further comprising electrical energizing means forenergizing the electrolyzing means, gas tubes for supplying hydrogen andoxygen from the electrolyzing means to the combustion chamber and awater pipe for returning water from the combustion chamber to theelectrolyzing means.

3. Noise making apparatus as claimed in claim 2, wherein the sparkingmeans comprises a spark gap and spark coil means electrically connectedto the electrical energizing means.

4. Noise making apparatus as claimed in claim 3, wherein the sparkcontrol means comprises pressureresponsive switch means electricallyconnected between the electrical energizing means and the spark coilmeans.

1. Noise making apparatus for protecting crops from wildlife, comprisinga combustion chamber; gas feeding means for supplying explosive gases tothe combustion chamber; sparking means in the combustion chamber forexploding the gases; and spark control means for igniting the sparkingmeans when the pressure of gas in the combustion chamber reaches apredetermined level.
 2. Noise making apparatus as claimed in claim 1,wherein the gas feeding means comprises electrolyzing means fordecomposing water into hydrogen and oxygen, and further comprisingelectrical energizing means for energizing the electrolyzing means, gastubes for supplying hydrogen and oxygen from the electrolyzing means tothe combustion chamber and a water pipe for returning water from thecombustion chamber to the electrolyzing means.
 3. Noise making apparatusas claimed in claim 2, wherein the sparking means comprises a spark gapand spark coil means electrically connected to the electrical energizingmeans.
 4. Noise making apparatus as claimed in claim 3, wherein thespark control means comprises pressure-responsive switch meanselectrically connected between the electrical energizing means and thespark coil means.